Thiazole, 2,4,5-trimethyl-

• Formula: C₆H₉NS
• Molecular weight: 127.207
• IUPAC Standard InChI: InChI=1S/C6H9NS/c1-4-5(2)8-6(3)7-4/h1-3H3 Copy

  
• IUPAC Standard InChIKey: BAMPVSWRQZNDQC-UHFFFAOYSA-N Copy
• CAS Registry Number: 13623-11-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: 2,4,5-Trimethylthiazole; Trimethylthiazole
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• Information on this page:
  • Phase change data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Reduced pressure boiling point

Enthalpy of fusion

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Van Den Dool and Kratz RI, polar column, temperature ramp

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Van Den Dool and Kratz RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Meyer and Metzger, 1966
Meyer, R.; Metzger, J., C. R. Acad. Sci. Paris, Ser. C, 1966, 263, 1333. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Golovnya, Shenderyuk, et al., 1991
Golovnya, R.V.; Shenderyuk, V.V.; Zhuravleva, I.L.; Yakush, E.V., Analogy of sorption properties of alkylthiazoles and alkyl-oxazoles and its use for the calculation of retention indexes in capillary gas chromatography, Zh. Anal. Khim., 1991, 46, 2, 313-319. [all data]

Golovnya, Zhuravleva, et al., 1991
Golovnya, R.V.; Zhuravleva, I.L.; Yakush, E.V.; Schenderjuk, V.V., Retentions of alkyloxazoles and alkythiazoles and their prediction based on non-linear additivity concepts in gas chromatography, J. Chromatogr., 1991, 552, 1-12, https://doi.org/10.1016/S0021-9673(01)95918-7 . [all data]

Zhuravleva, Shenderyuk, et al., 1990
Zhuravleva, I.L.; Shenderyuk, V.V.; Yakush, E.V.; Golovnya, R.V., Calculation of retention indexes of alkyloxazoles and alkylthiazoles in capillary chromatography, Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.), 1990, 6, 6, 1204-1210, https://doi.org/10.1007/BF00962384 . [all data]

Yakush, Golovnya, et al., 1986
Yakush, E.V.; Golovnya, R.V.; Zhuravleva, I.L.; Grigor'eva, D.N., Thermodynamic criterion and its use for identification of alkylthiazols from gas chromatographic data, Zh. Anal. Khim., 1986, 41, 884-889. [all data]

Rochat S., de Saint Laumer J.Y., et al., 2007
Rochat S.; de Saint Laumer J.Y.; Chaintreau A., Analysis of sulfur compounds from the in-oven roast beef aroma by comprehensive two-dimensional gas chromatography, J. Chromatogr. A, 2007, 1147, 1, 85-94, https://doi.org/10.1016/j.chroma.2007.02.039 . [all data]

Mahadevan and Farmer, 2006
Mahadevan, K.; Farmer, L., Key Odor Impact Compounds in Three Yeast Extract Pastes, J. Agric. Food Chem., 2006, 54, 19, 7242-7250, https://doi.org/10.1021/jf061102x . [all data]

Solina, Baumgartner, et al., 2005
Solina, M.; Baumgartner, P.; Johnson, R.L.; Whitfield, F.B., Volatile aroma components of soy protein isolate and acid-hydrolysed vegetable protein, Food Chem., 2005, 90, 4, 861-873, https://doi.org/10.1016/j.foodchem.2004.06.005 . [all data]

Ames, Guy, et al., 2001
Ames, J.M.; Guy, R.C.E.; Kipping, G.J., Effect of pH and temperature on the formation of volatile compounds in cysteine/reducing sugar/starch mixtures during extrusion cooking, J. Agric. Food Chem., 2001, 49, 4, 1885-1894, https://doi.org/10.1021/jf0012547 . [all data]

Whitfield and Mottram, 2001
Whitfield, F.B.; Mottram, D.S., Heterocyclic volatiles formed by heating cysteine or hydrogen sulfide with 4-hydroxy-5-methyl-3(2H)-furanone at pH 6.5, J. Agric. Food Chem., 2001, 49, 2, 816-822, https://doi.org/10.1021/jf0008644 . [all data]

Madruga and Mottram, 1998
Madruga, M.S.; Mottram, D.S., The effect of pH on the formation of volatile compounds produced by heating a model system containing 5'-imp and cysteine, J. Braz. Chem. Soc., 1998, 9, 3, 261-271, https://doi.org/10.1590/S0103-50531998000300010 . [all data]

Zhang and Ho, 1991
Zhang, Y.; Ho, C.-T., Comparison of the volatile compounds formed from the thermal reaction of glucose with cysteine and glutathione, J. Agric. Food Chem., 1991, 39, 4, 760-763, https://doi.org/10.1021/jf00004a029 . [all data]

Mottram and Whitfield, 1995
Mottram, D.S.; Whitfield, F.B., Volatile compounds from the reaction of cysteine, ribose, and phospholipid in low-moisture systems, J. Agric. Food Chem., 1995, 43, 4, 984-988, https://doi.org/10.1021/jf00052a027 . [all data]

Chung, 1999
Chung, H.Y., Volatile components in crabmeats of Charybdis feriatus, J. Agric. Food Chem., 1999, 47, 6, 2280-2287, https://doi.org/10.1021/jf981027t . [all data]

Cadwallader, Tan, et al., 1995
Cadwallader, K.R.; Tan, Q.; Chen, F.; Meyers, S.P., Evaluation of the aroma of cooked spiny lobster tail meat by aroma extract dilution analysis, J. Agric. Food Chem., 1995, 43, 9, 2432-2437, https://doi.org/10.1021/jf00057a022 . [all data]

Chung and Cadwallader, 1993
Chung, H.Y.; Cadwallader, K.R., Volatile components in blue crab (Callinectes sapidus) meat and processing by-product, J. Food Sci., 1993, 58, 6, 1203-1207, https://doi.org/10.1111/j.1365-2621.1993.tb06148.x . [all data]

Whitfield, Mottram, et al., 1988
Whitfield, F.B.; Mottram, D.S.; Brock, S.; Puckey, D.J.; Salter, L.J., Effect of Phospholipid on the Formation of Volatile Heterocyclic Compounds in Heated Aqueous Solutions of Amino Acids and Ribose, J. Sci. Food Agric., 1988, 42, 3, 261-272, https://doi.org/10.1002/jsfa.2740420309 . [all data]

Bianchi, Careri, et al., 2007
Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Sci., 2007, 39, 4, 563-572, https://doi.org/10.1002/jssc.200600393 . [all data]

Golovnya, Zhuravleva, et al., 1987
Golovnya, R.V.; Zhuravleva, I.L.; Yakush, E.V., Calculation of the thermidynamic values of alkylthiazoles from the Kovats retention indices on the basis on the non-linear additivity principle, Chromatographia, 1987, 23, 8, 595-598, https://doi.org/10.1007/BF02324871 . [all data]

Du, Clery, et al., 2008
Du, Z.; Clery, R.; Hammond, C.J., Volatile organic nitrogen-containing constituents in ambrette seed Abelmoschus moschatus Medik (Malvaceae), J. Agric. Food Chem., 2008, 56, 16, 7388-7392, https://doi.org/10.1021/jf800958d . [all data]

Fadel, Mageed, et al., 2006
Fadel, H.H.M.; Mageed, M.A.A.; Lotfy, S.N., Quality and flavour stability of coffee substitute prepared by extrusion of wheat germ and chicory roots, Amino Acids, 2006, https://doi.org/10.1007/s007260200008 . [all data]

Deibler, Acree, et al., 1998
Deibler, K.D.; Acree, T.E.; Lavin, E.H., Aroma analysis of coffrr brew by gas chromatography-oldfactometry, Developments in Food Sci., 1998, 40, 69-78. [all data]

Tai and Ho, 1998
Tai, C.-Y.; Ho, C.-T., Influence of glutathione oxidation and pH on thermal formation of Maillard-type volatile compounds, J. Agric. Food Chem., 1998, 46, 6, 2260-2265, https://doi.org/10.1021/jf971111t . [all data]

Lorenz, Stern, et al., 1983
Lorenz, G.; Stern, D.J.; Flath, R.A.; Haddon, W.F.; Tillin, S.J.; Teranishi, R., Identification of sheep liver volatiles, J. Agric. Food Chem., 1983, 31, 5, 1052-1057, https://doi.org/10.1021/jf00119a033 . [all data]

Chantreau, Rochat, et al., 2006
Chantreau, A.; Rochat, S.; de Saint Laumer, J.-Y., Re-investigation of sulfur impact odorants in roast beef using comprehensive two-dimensional GC-TOF-MS and the GC-SNIF, Developments Food. Sci., 2006, 43, 601-604. [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Gijs, Piraprez, et al., 2000
Gijs, L.; Piraprez, G.; Perpète, P.; Spinnler, E.; Collin, S., Retention of sulfur flavours by food matrix and determination of sensorial data independent of the medium composition, Food Chem., 2000, 69, 3, 319-330, https://doi.org/10.1016/S0956-7135(99)00111-5 . [all data]

Blank, Sen, et al., 1992
Blank, I.; Sen, A.; Grosch, W., Potent odorants of the roasted powder and brew of Arabica coffee, Z. Lebensm. Unters Forsch., 1992, 195, 3, 239-245, https://doi.org/10.1007/BF01202802 . [all data]

Kiss, Csoka, et al., 2011
Kiss, M.; Csoka, M.; Gyorfi, J.; Korany, K., Comparison of the fragrance constituents of Tuber aestivium and Tuber Brumale gathered in Hungary, J. Appl. Botany Food Quality, 2011, 84, 102-110. [all data]

Lee and Shibamoto, 2000
Lee, K.-G.; Shibamoto, T., Antioxidant properties of aroma compounds isolated from soybeans and mung beans, J. Agric. Food Chem., 2000, 48, 9, 4290-4293, https://doi.org/10.1021/jf000442u . [all data]

Umano, Hagi, et al., 1995
Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T., Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system, J. Agric. Food Chem., 1995, 43, 8, 2212-2218, https://doi.org/10.1021/jf00056a046 . [all data]

Eiserich, Macku, et al., 1992
Eiserich, J.P.; Macku, C.; Shibamoto, T., Volatile antioxidants formed from an L-cysteine/D-glucose Maillard model system, J. Agric. Food Chem., 1992, 40, 10, 1982-1988, https://doi.org/10.1021/jf00022a050 . [all data]

Shibamoto and Russell, 1977
Shibamoto, T.; Russell, G.F., A study of the volatiles isolated from a D-glucose-hydrogen sulfide-ammonia model system, J. Agric. Food Chem., 1977, 25, 1, 109-112, https://doi.org/10.1021/jf60209a054 . [all data]

Notes

Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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